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Citation: YU Chun-Bo, WANG Yu-Jiang, LIN Yun-Qing, HUA Kai-Feng, XING Wei, YANG Hui, LU Tian-Hong. SO₂ Gas Electrochemical Sensor at Fixed Potential Using Solid Electrolyte of Proton Exchange Membrane Modified with Phosphoric Acid[J]. Chinese Journal of Applied Chemistry, ;2002, 19(2): 135-139. shu

SO₂ Gas Electrochemical Sensor at Fixed Potential Using Solid Electrolyte of Proton Exchange Membrane Modified with Phosphoric Acid

1.
a Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun;
2.
b Department of Chemistry, Nanjing Normal University, Nanjing 210097

Corresponding author: LU Tian-Hong,
Received Date: 4 April 2001
Available Online: 16 November 2001
Fund Project: 江苏省教委自然科学基金(1999HXX0000SJ2) (1999HXX0000SJ2)吉林省科委(990113) (990113)

A new type of proton exchange membrane modified with phosphoric acid is used as a solid electrolyte in the electrochemical gas sensor worked at the fixed potential. It was found that this type of membrane has advantages of high conductivity, good stickness, low price and good water preserving ability. The sensor prepared with this type of membrane possesses low background current and noise. The relationship between gas concentration and response signal is linear. Therefore, it is hopeful to obtain a new type of gas electrochemical sensor with solid electrolyte.
- SO₂,
- solid electrolyte,
- sensor
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SO2 Gas Electrochemical Sensor at Fixed Potential Using Solid Electrolyte of Proton Exchange Membrane Modified with Phosphoric Acid

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SO₂ Gas Electrochemical Sensor at Fixed Potential Using Solid Electrolyte of Proton Exchange Membrane Modified with Phosphoric Acid